Remove all remaining traces of MessageLoopProxy.

chrome/service/cloud_print/printer_job_handler.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_SERVICE_CLOUD_PRINT_PRINTER_JOB_HANDLER_H_
 #define CHROME_SERVICE_CLOUD_PRINT_PRINTER_JOB_HANDLER_H_
 
 #include <list>
 #include <string>
 #include <vector>
@@ skipping 256 matching lines @@
 
   // The next response handler can either be a JSONDataHandler or a
   // DataHandler (depending on the current request being made).
   JSONDataHandler next_json_data_handler_;
   DataHandler next_data_handler_;
   // The thread on which the actual print operation happens
   base::Thread print_thread_;
   // The Job spooler object. This is only non-NULL during a print operation.
   // It lives and dies on |print_thread_|
   scoped_refptr<PrintSystem::JobSpooler> job_spooler_;
-  // The message loop proxy representing the thread on which this object
-  // was created. Used by the print thread.
+  // The task runner representing the thread on which this object was created.
+  // Used by the print thread.
   scoped_refptr<base::SingleThreadTaskRunner> job_handler_task_runner_;
 
   // There may be pending tasks in the message queue when Shutdown is called.
   // We set this flag so as to do nothing in those tasks.
   bool shutting_down_;
 
   // A string indicating the reason we are fetching jobs from the server
   // (used to specify the reason in the fetch URL).
   std::string job_fetch_reason_;
   // Flags that specify various pending server updates
@@ skipping 17 matching lines @@
   base::Time last_caps_update_time_;
 
   base::WeakPtrFactory<PrinterJobHandler> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PrinterJobHandler);
 };
 
 }  // namespace cloud_print
 
 #endif  // CHROME_SERVICE_CLOUD_PRINT_PRINTER_JOB_HANDLER_H_